Hub



FIG. 1 is a front perspective view of a first embodiment of a hub in accordance with our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a rear perspective view thereof;

FIG. 9 is a front perspective view of a second embodiment of a hub in accordance with our new design;

FIG. 10 is a front view thereof;

FIG. 11 is a rear view thereof;

FIG. 12 is a left side view thereof;

FIG. 13 is a right side view thereof;

FIG. 14 is a top plan view thereof;

FIG. 15 is a bottom plan view thereof; and,

FIG. 16 is a rear perspective view thereof.

The broken lines depict perforated portions of the hub that form no part of the claimed design. 

CLAIM The ornamental design for a hub, as shown and described. 